Reusable dust removal filter element

Abstract

A reusable dust removal filter element comprises a top cover and a base which are oppositely arranged up and down, and a filter element arranged between the top cover and the base. The filter element comprises a columnar inner filter screen, a middle filter screen and an outer filter screen, wherein the middle filter screen and the outer filter screen are sequentially sleeved on the outer ring of the inner filter screen. The top cover comprises an upper round cover, the base comprises a lower round cover, and an inner filter screen groove, a middle filter screen groove and an outer filter screen groove which are clamped and matched with the filter element are formed in the opposite sides of the upper round cover and the lower round cover. A cylindrical upper shaft and a cylindrical lower shaft are arranged on the sides, deviating from each other, of the upper round cover and the lower round cover correspondingly. The filter element is of a three-layer structure, the middle filter screen serves as a core filter layer for dust filtration, and the inner filter screen and the outer filter screen are arranged on the two sides of the middle filter screen, so that the overall structural stability of the filter element can be enhanced, the buffering and preliminary filtration effects can be achieved for filtration of the middle filter screen, and the service life of the middle filter screen is prolonged. The filter element cleaning device can be soaked in water to clean dust accumulated on the surface and inside the filter element, the cleaned filter element can be used for the second time, and the reuse rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a reusable dust removal filter element. Background Art

[0002] In the fields of chemical industry, building materials, geotechnical engineering, etc., a large amount of dust or smoke will be generated during the production or construction process. Dust removal equipment is usually used at the construction site to reduce the dust concentration, and the key component that affects the dust removal efficiency of the dust removal equipment is the dust removal filter element. The patent document with application number CN202323182615.4 provides a dust removal equipment filter element that is easy to disassemble, including a filter element outer cylinder, a filter element inner cylinder is arranged inside the filter element outer cylinder, the filter element inner cylinder is threadedly connected to the filter element outer cylinder through an external thread, and the filter element outer cylinder is stably mounted on the equipment through a mounting base. However, its filter element only includes a two-layer structure of a filter element inner cylinder and a filter element outer cylinder, and only one filter element outer cylinder supports it. When the dust-containing gas enters the filter element and directly contacts the filter element inner cylinder, it will not only affect the service life of the filter element inner cylinder, but also cause the overall filtering effect to be low. Moreover, the filter element has a low reuse rate. After washing with water, dust will be fixed on the filter element, causing the filter hole to be blocked. It cannot meet the long-term use of the dust removal equipment, affecting the dust removal efficiency, and thus having an adverse effect on the construction process. Utility Model Content

[0003] In order to solve the technical problems that the dust filter element in the above background technology has a short service life and cannot be reused, the utility model provides a reusable dust filter element.

[0004] The technical solution of this utility model is as follows:

[0005] A reusable dust filter element, comprising a top cover and a base arranged opposite to each other, and a filter element arranged therebetween. The filter element comprises a cylindrical inner filter screen and a middle filter screen and an outer filter screen which are sequentially sleeved on its outer ring. The top cover comprises an upper round cover, and the base comprises a lower round cover. The inner filter screen slot, the middle filter screen slot and the outer filter screen slot which are snap-fitted with the filter element are provided on opposite sides of the upper round cover and the lower round cover. The upper and lower round covers are respectively provided with a cylindrical upper shaft and a cylindrical lower shaft on the opposite sides of the upper and lower round covers.

[0006] The filter element adopts a three-layer structure. The middle filter is the core filter layer for dust filtration. By setting the inner filter and the outer filter on both sides, it can not only enhance the overall structural stability of the filter element, but also play a buffering and preliminary filtering effect on the filtration of the middle filter, thereby increasing the service life of the middle filter. The upper and lower ends of the filter element are connected to the top cover and the base by inserting them into the outer filter slot, the middle filter slot and the inner filter slot, which is convenient for connection and disassembly.

[0007] Furthermore, the inner filter, outer filter and middle filter are arranged with an interval of 10 cm between each other and have the same height. The three layers of filter are arranged with gaps, which can not only avoid friction loss between different filter screens, but also provide a certain buffer space for the gas to be filtered.

[0008] Preferably, the axes of the upper circular cover, the lower circular cover, the upper shaft and the lower shaft are arranged in a colinear manner, which is convenient for installation with the dust removal equipment and ensures the overall stability, and the center of gravity must be offset.

[0009] As a preferred embodiment, the outer ring of the upper shaft is provided with a plurality of locking blocks, and the locking blocks are staggered up and down on the outer ring of the upper shaft, which can enhance the connectivity between the dust filter element and the dust removal equipment, and the staggered arrangement can increase the contact area and improve stability.

[0010] Furthermore, the top cover and the base are made of polypropylene (PP) material, and 30% copolymer modification is added, which is odorless, tasteless, non-toxic, and has excellent mechanical properties, good chemical stability, good heat resistance, and higher strength and hardness after copolymer modification.

[0011] Preferably, the outer filter and the inner filter are made of stainless steel, with a mesh size of 0.0450 mm and a mesh size of 325. Stainless steel has good chemical stability, high strength, strong tensile strength, toughness and wear resistance, is durable, and is easy to maintain. While filtering some dust, it also protects the middle filter.

[0012] As the core filtering structure of the filter element, the middle filter screen is molded with three layers of composite materials, the inner and outer layers are coated polyester fibers, and the middle layer is melt-blown cloth. By utilizing the water-stable properties of coated polyester fibers and melt-blown cloth, the aqueous solution can be used to clean the dust in the filter element in a directional manner, avoiding the problem of dust being fixed on the filter element after washing and causing filter hole blockage.

[0013] Through the above design, the beneficial effects of the utility model are:

[0014] 1) It has better structural stability and connectivity, the filter is easy to disassemble and assemble, the operation is simple and the efficiency is high.

[0015] 2) Lightweight, good toughness, and higher strength and hardness after copolymerization modification.

[0016] 3) It can filter dust of various particle sizes and has a wide range of applicability. The inner and outer filters made of stainless steel have high strength, high temperature resistance, corrosion resistance, long service life and strong practicality.

[0017] 4) It is stable to water and has a very low water absorption rate. The dust accumulated on the surface and inside of the filter element can be cleaned by immersing it in water. The cleaned filter element can be used for a second time and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of a reusable dust removal filter element in the embodiment;

[0020] Figure 2 It is a schematic structural diagram of a reusable dust removal filter element in the embodiment;

[0021] Figure 3 It is Figure 2 the sectional view taken along the line A-A in

[0022] Figure 4 It is a schematic diagram of the top cover in the embodiment;

[0023] Figure 5 It is Figure 2 the enlarged view of the structure at B in

[0024] The components represented by the reference numerals in the figure are as follows:

[0025] 1. Top cover; 11. Upper shaft; 12. Locking block; 13. Upper round cover; 2. Filter element; 21. Outer filter screen; 22. Middle filter screen; 221. Coated polyester fiber; 222. Meltblown cloth; 23. Inner filter screen; 3. Base; 31. Lower shaft; 32. Lower round cover; 4. Outer filter screen groove; 5. Middle filter screen groove; 6. Inner filter screen groove. Detailed implementation manners

[0026] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0027] Embodiment

[0028] Combined with Figures 1 to 4 , this embodiment provides a reusable dust removal filter element, which includes a top cover 1 and a base 3 arranged oppositely up and down, and a filter element 2 disposed therebetween.

[0029] Furthermore, the top cover 1 and the base 3 are made of polypropylene (PP) material and added with 30% copolymer modification, odorless, tasteless, non-toxic, and have excellent mechanical properties, good chemical stability, good heat resistance, and higher strength and hardness after copolymer modification.

[0030] In this embodiment, the filter element 2 includes a columnar inner filter screen 23 and a middle filter screen 22 and an outer filter screen 21 sleeved in sequence on its outer ring. The filter element 2 adopts a three-layer structure. The middle filter screen 22 serves as the core filter layer for dust filtration. By arranging the inner filter screen 23 and the outer filter screen 21 on both sides thereof, not only the overall structural stability of the filter element 2 can be enhanced, but also the filtering of the middle filter screen 22 can be buffered and preliminarily filtered, thereby improving the service life of the middle filter screen 22.

[0031] Further, the inner filter screen 23, the outer filter screen 21, and the middle filter screen 22 are arranged at intervals of 10 cm from each other and have the same height. The three-layer filter screens are arranged with gaps, which can not only avoid frictional losses between different filter screens, but also provide a certain buffer space for the gas to be filtered.

[0032] Preferably, the outer filter screen 21 and the inner filter screen 23 are made of stainless steel, with a screen hole size of 0.0450 mm and a mesh number of 325 meshes. Stainless steel has good chemical stability, high strength, strong tensile force, toughness and wear resistance, is durable, and is convenient and simple to maintain. While filtering some dust, it plays a protective role for the middle filter screen 22.

[0033] Combined Figure 5 , as the core filtration structure of the filter element 2, the middle filter screen 22 is formed by molding three-layer composite materials. The inner and outer layers are covered polyester fibers 221, and the middle layer is melt-blown cloth 222. Both composite materials have strong stability to water, and water will form water droplets on their surfaces and cannot penetrate into the composite materials. Utilizing the water-stable characteristics of the covered polyester fibers 221 and the melt-blown cloth 222, the directional cleaning of the dust in the filter element 2 by the aqueous solution is realized, avoiding the problem of filter holes being blocked due to the dust being fixed on the filter element 2 after water washing.

[0034] In this embodiment, the top cover 1 includes an upper round cover 13, and the base 3 includes a lower round cover 32. Inner filter screen grooves 6, middle filter screen grooves 5, and outer filter screen grooves 4 that are engaged with the filter element 2 in a snap-fit manner are provided on the opposite sides of the upper round cover 13 and the lower round cover 32. The spacing between the three grooves is 10 cm, and the positions correspond to the positions of the inner filter screen 23, the middle filter screen 22, and the outer filter screen 21 one by one to ensure good connectivity among the top cover 1, the filter element 2, and the base 3. The upper and lower ends of the filter element 2 are connected to the top cover 1 and the base 3 by being inserted into the outer filter screen groove 4, the middle filter screen groove 5, and the inner filter screen groove 6, with convenient connection and easy disassembly.

[0035] Specifically, clamping grooves are provided on at least one side wall of the inner filter screen groove 6 and the outer filter screen groove 4. Protrusions that can be respectively snapped into the inner filter screen groove 6 and the outer filter screen groove 4 and are engaged with the clamping grooves by rotation are provided on the outer circles of the upper and lower ends of the inner filter screen 23 and the outer filter screen 21.

[0036] Cylindrical upper shafts 11 and lower shafts 31 are respectively provided on the sides of the upper round cover 13 and the lower round cover 32 that are away from each other.

[0037] Preferably, the axes of the upper round cover 13, the lower round cover 32, the upper shaft 11, and the lower shaft 31 are collinear, which is convenient for installation with the dust removal equipment, ensures the overall stability, and must avoid the center of gravity from shifting.

[0038] As a preferred embodiment, a number of locking blocks 12 are provided on the outer ring of the upper shaft 11, and the locking blocks 12 are vertically staggered and distributed on the outer ring of the upper shaft 11. This can enhance the connection between the dust removal filter element 2 and the dust removal device. The vertically staggered distribution can increase the contact area and improve the stability.

[0039] In a specific implementation, the top cover 1 and the base 3 are respectively connected to the dust removal device through the upper shaft 11 and the lower shaft 31. The upper round cover 13 and the lower round cover 32 have the same diameter. The diameters of the upper shaft 11 and the lower shaft 31 are not greater than the diameter of the upper round cover 13 and not less than 1 / 3 of the diameter of the upper round cover 13, ensuring that there is sufficient contact surface between the top cover 1 and the base 3 and the dust removal device.

[0040] Through the above design, the utility model has better structural stability and connectivity. The filter screen is convenient to disassemble and install, simple to operate, and has high efficiency. The overall quality is light, with good toughness. The materials of the top cover 1 and the base 3 have higher strength and hardness after copolymer modification. Dust passes through the inner filter screen 23, the middle filter screen 22, and the outer filter screen 21 in sequence, and can filter dust of various particle sizes, with wide applicability. The inner filter screen 23 and the outer filter screen 21 made of stainless steel have high strength, high temperature resistance, corrosion resistance, and long service life, with strong practicability. The overall material is stable to water, with extremely low water absorption, and the filter element 2 can be immersed in water to clean the dust accumulated on the surface and inside. The cleaned filter element 2 can be reused, improving the utilization rate of the dust removal filter element without affecting the dust removal efficiency.

Claims

1. A reusable dust removal filter element, characterized in that, It comprises a top cover (1) and a base (3) which are arranged opposite to each other in an upper and lower position, and a filter element (2) arranged therebetween; The filter element (2) comprises a columnar inner filter screen (23) and a middle filter screen (22) and an outer filter screen (21) which are sequentially sleeved on its outer ring; The top cover (1) comprises an upper circular cover (13), and the base (3) comprises a lower circular cover (32). The upper circular cover (13) and the lower circular cover (32) are provided with an inner filter groove (6), a middle filter groove (5) and an outer filter groove (4) which are engaged with the filter element (2) on opposite sides thereof. The upper circular cover (13) and the lower circular cover (32) are respectively provided with a cylindrical upper shaft (11) and a lower shaft (31) on the sides opposite to each other.

2. The reusable dust removal filter element according to claim 1, characterized in that, The inner filter (23), the outer filter (21) and the middle filter (22) are arranged with a spacing of 10 cm between each other.

3. The reusable dust removal filter element according to claim 1, wherein, The axes of the upper circular cover (13), the lower circular cover (32), the upper shaft (11) and the lower shaft (31) are arranged colinearly.

4. A reusable dust removal filter element according to claim 1, characterized in that, The outer ring of the upper shaft (11) is provided with a plurality of locking blocks (12), and the locking blocks (12) are staggered and distributed on the outer ring of the upper shaft (11) up and down.

5. A reusable dust removal filter element according to claim 1, characterized in that, The top cover (1) and the base (3) are made of polypropylene (PP).

6. The reusable dust removal filter element according to claim 1, wherein The outer filter (21) and the inner filter (23) are made of stainless steel, with a mesh size of 0.0450 mm and a mesh size of 325.

7. The reusable dust removal filter element according to claim 1, wherein, The middle filter screen (22) is molded using three layers of composite material, wherein the inner and outer layers are coated polyester fibers (221), and the middle layer is a meltblown cloth (222).

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